Screening device for fertilizer production

Abstract

The utility model discloses a fertilizer production screening device, which relates to the technical field of fertilizer production equipment, aims to solve the technical problem that the screening speed is influenced by the blocking of screen holes due to the fact that the fertilizer is adhered to the screen holes in the screening process at present, and comprises a screening device main body consisting of a rack, a vibrating mechanism, a screening component and a blanking hopper, the vibrating mechanism and the screening assembly are both installed on the inner side of the machine frame, the vibrating mechanism is movably connected with the screening assembly, the screening assembly is driven by the vibrating mechanism to vibrate, fertilizer can flow to the lower end on the surface of the screening plate, the fertilizer is screened through the positions of screening holes, and the screening efficiency is improved. In the long-time screening process, when the fertilizer adheres to the positions of the screening holes and influences the hole diameter, the extrusion part can push the ejection part to move upwards to extrude the fertilizer adhering to the screening holes of the screening plate, and the screening device has the advantages that a screening hole cleaning structure is additionally arranged, the hole diameter of the screening holes is kept balanced, and the fertilizer screening precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production equipment technology, and more specifically, to a fertilizer production screening device. Background Technology

[0002] During fertilizer production, fertilizer granules need to be screened to remove impurities and particles of different sizes in order to ensure fertilizer quality.

[0003] Because fertilizer particles vary in shape and properties, some fertilizers may be sticky or have high moisture content. During the screening process, these fertilizer particles easily clog the screen mesh. Once the screen is clogged, screening efficiency is greatly reduced. For example, in the production of some compound fertilizers containing a high amount of organic matter, the organic components in the fertilizer particles may become sticky in a humid environment, thus clogging the screen. This prevents small fertilizer particles that could normally pass through the screen from being properly screened, resulting in decreased screening accuracy and affecting the fertilizer screening speed. Therefore, we propose a fertilizer production screening device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a fertilizer production screening device to solve the technical problem that the current fertilizer has the phenomenon of sticking to the screen mesh during the screening process, which leads to the mesh clogging and affects the screening speed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a fertilizer production screening device, comprising a screening device body consisting of a frame, a vibration mechanism, a screening component, and a feeding hopper, wherein the vibration mechanism and the screening component are both installed on the inner side of the frame and are movably connected, and a feeding hopper connected to the screening component is also installed on the top of the frame;

[0006] The hopper includes a bottom shell and a top cover. A downwardly inclined screening plate is fixedly installed between the opposing inner walls of the bottom shell, and a guide plate located below the screening plate is also fixedly installed between the opposing inner walls of the bottom shell. The guide plate has through holes corresponding to the positions of the screen holes on the screening plate. An ejector is movably installed between the inner walls of the bottom shell to eject fertilizer adhering to the screen holes of the screening plate, and the ejector is located below the guide plate. Both ends of the bottom shell have pressing members fixedly installed on their opposing surfaces to lift the ejector upward.

[0007] The utility model discloses a vibrating mechanism drive screen assembly vibration can make fertilizer flow to the surface of the screen board downward end, carries out screening to fertilizer through the position of screen hole, can push the extrusion piece and move up to the extrusion operation of the fertilizer adhered to the screen hole of screen board through extrusion piece when the fertilizer adhered in the screen hole position influence aperture size in long time screening process, thereby expands to initial aperture, keeps good fertilizer screening effect, the design of guide plate can keep the flatness of surface under the cooperation of ejector and perforation, reduces the influence to the flow of fertilizer after screening, can improve the speed of fertilizer screening in this way.

[0008] Preferably, the ejector includes a fixed plate, a plurality of top rods with the same diameter as the perforation are fixedly arranged on the top of the fixed plate, and the top ends of the top rods are flush with the top surface of the guide plate.

[0009] Preferably, a flexible cleaning sleeve is fixedly arranged on the outer wall of the top rod, and the diameter of the cleaning sleeve is the same as the diameter of the screen hole on the screen plate.

[0010] Preferably, the extrusion piece includes a triangular extrusion block, an electric push rod fixedly connected with the bottom shell is arranged on one side of the extrusion block close to the bottom shell, an adjusting block abutting against the extrusion block is fixedly arranged on the bottom of the fixed plate, and the side surface abutting against the adjusting block is a bevel surface.

[0011] Preferably, a support plate close to the extrusion block is further fixedly arranged on the opposite side surface of the bottom shell, a moving groove is arranged on the side edge of the support plate abutting against the extrusion block, support blocks are fixedly arranged on the opposite side surfaces of the extrusion block and movably connected with the moving groove, and the support blocks are in the shape of a round cake.

[0012] Preferably, the side end of the electric push rod arranged on the downward inclined end of the ejector is further fixedly connected with a support column fixedly connected with the side wall of the bottom shell, and the surface of the support column is a circular arc surface.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、The utility model discloses a vibrating mechanism drive screen assembly vibration can make fertilizer flow to the surface of the screen board downward end, carries out screening to fertilizer through the position of screen hole, can push the extrusion piece and move up to the extrusion operation of the fertilizer adhered to the screen hole of screen board through extrusion piece when the fertilizer adhered in the screen hole position influence aperture size in long time screening process, thereby expands to initial aperture, keeps good fertilizer screening effect, the design of guide plate can keep the flatness of surface under the cooperation of ejector and perforation, reduces the influence to the flow of fertilizer after screening, can improve the speed of fertilizer screening in this way.

[0015] 2、The utility model discloses still can improve the support strength of the ejection piece through the combination of the moving groove and the supporting block, share the bearing force that extruding piece received, make the extruding block extruding cleaning sleeve can keep moving stable when moving, strengthen the durability of structural cooperation, and such structural cooperation is simple, and it is not easy to damage, convenient for regularly cleaning operation of screening board screen hole, keep the smoothness of screening. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the local structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 The sectional structure schematic diagram of;

[0019] Figure 4 It is Figure 3 The local structure sectional schematic diagram of;

[0020] Figure 5 It is Figure 3 The structure amplification schematic diagram of A portion in;

[0021] Figure 6 It is Figure 4 The structure amplification schematic diagram of B portion in;

[0022] Figure 7 It is Figure 4 The structure amplification schematic diagram of C portion in.

[0023] Mark explanation in drawing: 1, frame;2, vibrating mechanism;3, screening assembly;301, bottom shell;302, upper cover;303, feed inlet;4, discharge hopper;5, screening plate;6, guide plate;601, perforation;7, ejection piece;701, fixed plate;702, ejector rod;703, cleaning sleeve;704, adjusting block;8, extruding piece;801, extruding block;802, electric push rod;803, supporting block;804, supporting column;9, supporting plate;901, moving groove. DETAILED DESCRIPTION

[0024] As Figures 1 to 4 Indicated, the utility model discloses a kind of fertilizer production screening devices, including by frame 1, vibrating mechanism 2, screening assembly 3, discharge hopper 4 The screening device main body of composition, vibrating mechanism 2 and screening assembly 3 are all installed in the inner side of frame 1, and vibrating mechanism 2 and screening assembly 3 are movably connected between, the top of frame 1 is also installed with the discharge hopper 4 connected with screening assembly 3;Overall structure is all assembled to complete prior art, realize the effect of vibrating screening.

[0025] The lower hopper 4 comprises a bottom shell 301 and an upper cover 302, a downwardly inclined screening plate 5 is fixedly installed between the opposite inner walls of the bottom shell 301, and a guide plate 6 is also fixedly installed between the opposite inner walls of the bottom shell 301 and located below the screening plate 5; the plate wall of the guide plate 6 is provided with a perforation 601 corresponding to the position of the screen hole on the screening plate 5; an ejection member 7 for ejecting the fertilizer adhered in the screen hole of the screening plate 5 is movably installed between the inner walls of the bottom shell 301 and located below the guide plate 6; and the opposite faces of the two ends of the bottom shell 301 are fixedly provided with extrusion members 8 for lifting the ejection member 7 upward.

[0026] In the embodiment of the utility model, the ejection member 7 comprises a fixed plate 701, a plurality of top rods 702 with the same diameter as the perforation 601 are fixedly arranged on the top of the fixed plate 701, and the top ends of the top rods 702 are flush with the top surface of the guide plate 6; the top rods 702 inserted into the perforation 601 can block the perforation 601, preventing the fertilizer from being stuck in the perforation 601 after falling, and maintaining the smoothness of the guide.

[0027] In the embodiment of the utility model, the outer wall of the top rod 702 is fixedly provided with a flexible cleaning sleeve 703 with the same diameter as the screen hole on the screening plate 5; the cleaning sleeve 703 can further improve the adhesion to the inner wall of the screen hole of the screening plate 5 and strengthen the effect of extruding and cleaning the fertilizer.

[0028] In the embodiment of the utility model, the extrusion member 8 comprises a triangular extrusion block 801, an electric push rod 802 fixedly connected with the bottom shell 301 is arranged on one side of the extrusion block 801 close to the bottom shell 301, an adjusting block 704 abutting against the extrusion block 801 is fixedly arranged on the bottom of the fixed plate 701, and the side surface abutting against the adjusting block 704 is a bevel surface; the cooperation of the bevel surface of the adjusting block 704 abutting against the extrusion block 801 can make the fixed plate 701 move upward when the extrusion block 801 extrudes the adjusting block 704, and can make the ejection member 7 automatically move downward and keep abutting against the extrusion block 801 under the influence of its own gravity when the extrusion block 801 is separated from the adjusting block 704, facilitating the lifting operation.

[0029] In the embodiment of the utility model, the opposite side of bottom shell 301 is also fixedly provided with a support plate 9 close to extrusion block 801, the side of support plate 9 and extrusion block 801 is provided with a moving groove 901, and the opposite side of extrusion block 801 is fixedly provided with a support block 803 movably connected with moving groove 901, and the support block 803 is in the shape of a round cake; the compression strength of extrusion part 8 can be enhanced by the cooperation of support plate 9 and support column 804, and the stability of supporting ejector 7 is improved.

[0030] In the embodiment of the utility model, the side end of electric push rod 802 arranged at the lower inclined end of ejector 7 is also fixedly provided with a support column 804 fixedly connected with the side wall of bottom shell 301, and the surface of support column 804 is in the shape of a circular arc; the position of installing electric push rod 802 can be extended by the arrangement of support column 804, the resistance can be reduced when the fertilizer falls into bottom shell 301 by the design of the circular arc surface, the fertilizer is prevented from adhering to the surface of support column 804, and the influence on the screening of the fertilizer is reduced.

[0031] Working principle: the embodiment provides a fertilizer production screening device, when the fertilizer enters the inside of screening assembly 3 through the position of discharging hopper 4, the fertilizer can move along the downward slope under the blockage of screening plate 5, and the screening assembly 3 can produce the vibration effect under the work of vibration mechanism 2, so that the fertilizer accumulated on the surface of screening plate 5 can be scattered, the fertilizer smaller than or equal to the diameter of the screen hole can smoothly fall to the top of guide plate 6, then move downward along the downward slope of guide plate 6, then fall to the bottom of bottom shell 301 at the position of the gap between the lower end of guide plate 6 and bottom shell 301, so that the screening and collecting effect is achieved, and the fertilizer not meeting the screening size is discharged along the position of the opening at the lower end of upper cover 302, when screening for a period of time, extrusion part 8 can be started to extrude ejector 7 to move upward, and the upper end of fixed plate 701 can move to the position of the screen hole of screening plate 5 under the abutting effect of extrusion block 801 and cleaning sleeve 703, so that the fertilizer adhered in the screen hole can be extruded out, or the fertilizer blocking the screen hole of screening plate 5 can be ejected, so that the integrity of the diameter of the screen hole is maintained, the smooth effect of screening is improved, and the precision of the screening of the fertilizer can be enhanced by the cooperation of the structure, and the screening effect of the fertilizer is improved.

[0032] The embodiment of the utility model discloses the preferable embodiment, but is not limited to this, and the ordinary skill in the art, the spirit of the utility model can be understood by the above-mentioned embodiment, and different induction and change are made, but as long as not departing from the spirit of the utility model, it is within the protection scope of the utility model.

Claims

1. A fertilizer production screening device, characterized in that, The main body of the screening device consists of a frame (1), a vibration mechanism (2), a screening component (3), and a feeding hopper (4). The vibration mechanism (2) and the screening component (3) are both installed on the inner side of the frame (1), and the vibration mechanism (2) and the screening component (3) are movably connected. The top of the frame (1) is also equipped with a feeding hopper (4) connected to the screening component (3). The hopper (4) includes a bottom shell (301) and a top cover (302). A downwardly inclined screening plate (5) is fixedly installed between the opposing inner walls of the bottom shell (301). A guide plate (6) located below the screening plate (5) is also fixedly installed between the opposing inner walls of the bottom shell (301). A through hole (601) corresponding to the position of the screen hole on the screening plate (5) is opened on the plate wall of the guide plate (6). An ejector (7) for ejecting the fertilizer adhering in the screen hole of the screening plate (5) is movably installed between the inner walls of the bottom shell (301). The ejector (7) is located below the guide plate (6). An extrusion member (8) for lifting the ejector (7) upward is fixedly provided on the opposing surfaces at both ends of the bottom shell (301).

2. The fertilizer production screening device according to claim 1, characterized in that, The ejector (7) includes a fixing plate (701), and a number of push rods (702) with the same diameter as the through hole (601) are fixedly provided on the top of the fixing plate (701), and the top of the push rods (702) is flush with the top surface of the guide plate (6).

3. The fertilizer production screening device according to claim 2, characterized in that, A flexible cleaning sleeve (703) is fixedly provided on the outer wall of the top rod (702), and the diameter of the cleaning sleeve (703) is the same as the diameter of the sieve hole on the sieve plate (5).

4. The fertilizer production screening device according to claim 2, characterized in that, The extrusion member (8) includes a triangular extrusion block (801). An electric push rod (802) is fixedly connected to the bottom shell (301) on the side of the extrusion block (801) near the bottom shell (301). An adjustment block (704) is fixedly provided at the bottom of the fixing plate (701) and abuts against the extrusion block (801). The side of the adjustment block (704) that abuts is a slope.

5. The fertilizer production screening device according to claim 1, characterized in that, The bottom shell (301) is also fixedly provided with a support plate (9) close to the extrusion block (801) on the opposite side. The support plate (9) is provided with a moving groove (901) on the side that fits with the extrusion block (801). The extrusion block (801) is fixedly provided with a support block (803) that is movably connected to the moving groove (901) on the opposite side. The support block (803) is in the shape of a disc.

6. The fertilizer production screening device according to claim 1, characterized in that, The electric push rod (802) located at the downward end of the ejector (7) is also fixedly provided with a support column (804) that is fixedly connected to the side wall of the bottom shell (301). The surface of the support column (804) is an arc surface.

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